Messages in this thread | | | Date | Thu, 21 Aug 2003 14:48:54 +0100 | From | Jamie Lokier <> | Subject | Re: Input issues - key down with no key up |
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Maciej W. Rozycki wrote: > > My laptop has function buttons that bring me to a setup menu where > > I can set various timeouts related to power saving. These built-in > > menus react to translated scancode Set 2 only. There is no way to get > > out if one first chooses Set 3.
Perhaps the BIOS is listening for translated set 2 scancodes. Maybe some different keys would have the power saving functions in other modes?
> Actually the spec is a standard and standard hardware performs as > expected (e.g. hardware released by IBM). The rest is non-standard and if > a manufacturer claims PS/2-compliance for any of these items, then he > lies.
The user doesn't care if it's PS/2 compliant or not. It must work, that is the only important thing. Even more so, given it is flawless
> Note the translation is done outside the keyboard -- the onboard 8042 > controller is responsible for it. And it's an obstacle for normal > operation, most notably you cannot handle hot-plug events as they are > undistinguishable from a <Shift> release.
Perhaps you can detect a keyboard being unplugged by periodically sending it Echo commands (EE), or any other command to which it responds.
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